CN111002691A

CN111002691A - Control system of leather pressing machine

Info

Publication number: CN111002691A
Application number: CN201911282724.9A
Authority: CN
Inventors: 唐静
Original assignee: Chongqing Jiahe Furniture Manufacturer Co ltd
Current assignee: Chongqing Jiahe Furniture Manufacturer Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-04-14

Abstract

The invention relates to the technical field of wood processing equipment, in particular to a leather pressing machine control system which comprises a rack, wherein a top plate and a base are arranged on the rack, the base is fixedly connected with the top plate through a support column, a driving device is arranged in the base, a piston rod of the driving device penetrates through the upper surface of the base and is fixedly provided with a first support plate, a second support plate is arranged right above the first support plate, the first support plate and the second support plate are in sliding fit with the support column, a first heating plate and a second heating plate are respectively and fixedly arranged on the lower surface of the top plate and the lower surface of the second support plate, a first limiting block is fixed on the front surface of the second support plate, and a second limiting block for limiting the. The problem that the existing veneer pressing machine cannot process a plurality of wood boards through one-time operation flow and has low wood board veneer pressing efficiency can be solved.

Description

Control system of leather pressing machine

Technical Field

The invention relates to the technical field of wood processing equipment, in particular to a control system of a veneer press.

Background

The molded door plate is a low-carbon, environment-friendly, attractive, convenient, non-cracking and non-deforming door plate which is produced by adopting a medium density board (MDF) or a high density board (HDF) or a steel plate as a base material, adhering natural solid wood veneers such as fraxinus mandshurica, black walnuts, rosewood, sapelli and the like, or PVC or PP films on the surface, or not adhering any wood veneer and surface skin, and adopting a one-step forming technology or a two-step forming technology under the high-temperature, high-pressure and high-heat environment through a high-tonnage vacuum veneer press.

The high-quality molded door plate is closely related to a veneer pressing machine, a production process, the quality of a plate, the quality of a skin, the quality of glue, the quality of staff and inspection standards. The mould pressing door plate can help wide and large wooden door factories to realize 'flow line production and ecological development', is a great trend of the wooden door industry all over the world, and has been selected and favored by more and more wooden door factories.

Prevent fold furniture pressure skin machine like chinese patent publication No. CN109203631A, comprises a workbench, both ends fixed mounting has two sets of frame plates about the workstation top surface, two sets of frame plate top fixed mounting have the roof, the sliding tray has been seted up to the roof bottom, sliding connection has the slider in the sliding tray, slider bottom fixed mounting has screw nut, threaded connection has the lead screw among the screw nut, the lead screw left end is rotated and is connected in the inboard upper end of left frame plate, the lead screw right-hand member is worn out the frame plate upper end on right side and is seted up some through-holes and with the output of motor end fixed mounting. The motor drives the screw rod installed at the output end to rotate, and the screw rod nut drives the part arranged at the lower end of the installation frame to move left and right on the workbench in a reciprocating mode, so that the hot-pressing part, the glue spraying part and the cooling fan can process the wood board in a reciprocating mode.

Although the invention can press the wood boards, the heat-conducting aluminum plate is contacted with the wood boards on the workbench by pushing the mounting plate downwards by the pushing cylinder, only one wood board can be processed, and a plurality of wood boards cannot be processed in one operation flow, so that the problem of low pressing efficiency exists.

Disclosure of Invention

The invention aims to provide a veneer pressing machine control system which can solve the problem of low veneer pressing efficiency of a wood board.

The basic scheme provided by the invention is as follows: leather-pressing machine control system, which comprises a frame, be equipped with roof and base in the frame, the base passes through support column and roof fixed connection, be equipped with drive arrangement in the base, drive arrangement's piston rod passes the last fixed surface of base and installs first support plate, be equipped with the second support plate directly over the first support plate, first support plate and second support plate and support column sliding fit, the lower surface of roof and the lower surface of second support plate respectively fixed mounting have first hot plate and second hot plate, the fixed first stopper that is equipped with of second support plate, the fixed second stopper that is equipped with the restriction first stopper and moves down on the support column.

The working principle and the advantages of the invention are as follows:

before the leather pressing machine control system works, an operator respectively puts a wood board to be pressed into the upper surfaces of a first carrier plate and a second carrier plate, leatheroid can be placed on the upper surface or the lower surface of the wood board according to specific processing requirements, after the preparation work is finished, a driving device is started, the driving device pushes the first carrier plate to move upwards, the first carrier plate contacts a second carrier plate right above, the wood board on the upper surface of the first carrier plate successfully enters a leather pressing state, the second carrier plate moves upwards along with the first carrier plate under the pushing of the first carrier plate and contacts a top plate, the wood board on the upper surface of the second carrier plate starts to be pressed, at the moment, the first carrier plate and the second carrier plate move upwards, two heating plates respectively heat the wood board, after the carrier plates are statically closed and keep pressure for a certain time, the piston rod of the driving device drives the first carrier plate to move downwards, and the second carrier plate moves downwards along with the first carrier plate, the lower surface of the top plate is separated from the upper surface of the second carrier plate. When a second limiting block on the second carrier plate is contacted with a first limiting block on the supporting column, the second carrier plate does not move downwards any more, the first carrier plate continues to move downwards, the lower surface of the second carrier plate is separated from the upper surface of the first carrier plate, the leather pressing work is completed, and an operator can take out the finished wood board from the carrier plate.

According to the invention, the first support plate and the second support plate are respectively used for placing the wood boards for leather pressing, and the leather pressing work of two wood boards can be completed after the driving device works once (the piston rod of the driving device reciprocates once). For convenience of description, the invention adopts two carrier plates, and actually, a plurality of carrier plates can be arranged between the top plate and the base, and the rest carrier plates except the first carrier plate (the carrier plate fixedly connected with the piston rod of the driving device) are respectively provided with a limiting block. When the leather pressing machine does not work, the limiting block can fix the support plate on the support column, and the support plate is prevented from falling. Compared with the prior art that a board is placed on one support plate for leather pressing, the leather pressing device can improve the working efficiency of leather pressing.

Further, still include control module, control module includes the keyboard, the singlechip, temperature control circuit and temperature sensor, the input of singlechip is connected to the keyboard, the input of temperature control circuit is connected to the output of singlechip, hot plate (first hot plate and second hot plate) are connected to temperature control circuit's output, the input of singlechip is connected to temperature sensor's output, operating personnel can control the temperature of two hot plates, the pressure skin machine is more intelligent.

Further, the quantity of temperature sensor is 2, and two temperature sensor fix respectively on first hot plate and second hot plate. The temperature of two hot plates is monitored to the operating personnel of being convenient for.

Further, still include display module, display module connects the output of singlechip, and display module can show the heating temperature that the keyboard set for and the real-time temperature that temperature sensor detected, and the operating personnel of being convenient for is to the collection and the analysis of heating data.

Further, the driving device is a hydraulic press, the hydraulic press is a machine which takes liquid as a working medium, takes a motor as working power and is manufactured according to the Pascal principle and used for transmitting energy to realize various processes, the first carrier plate can reciprocate through the hydraulic press, and the hydraulic press has larger acting force and can be used for pressing the wood board.

The first carrier plate and the second carrier plate are provided with guide holes, and the guide posts penetrate through the guide holes to be connected with the first carrier plate and the second carrier plate in a sliding mode. The guide columns are arranged, so that accurate die assembly of the movable die and the fixed die can be guaranteed.

Furthermore, the heating plate adopts the heating wire as a heating element, and the heating plate adopts silicon carbide as an insulating material, so that compared with a magnesium oxide metal tube electric heater, the heating plate can save 20-24% of electricity, and has the advantages of high temperature rise speed, long service life and the like.

Further, the first heating plate has a size larger than that of the second heating plate. The heating plate of design different specifications can press the skin to the door plant of different specifications.

Further, the lower surface of roof passes through the bolt-up with first hot plate, and firm in connection just can dismantle, and the later stage of being convenient for is changed and is maintained.

Furthermore, the temperature sensor adopts DS18B20, and the temperature sensor can directly convert the temperature into a digital signal, and when in use, the temperature sensor can be connected with the singlechip through an I/O single wire, so that the use of an A/D converter is avoided, the circuit structure can be simplified, and the system resource of the singlechip is saved.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a leather press control system according to the present invention.

FIG. 2 is a block diagram of a control system of a second embodiment of the leather press control system of the present invention.

FIG. 3 is a longitudinal cross-sectional view of a second heated platen of a third embodiment of the skin press control system of the present invention.

FIG. 4 is a circuit diagram of a third embodiment of the leather press control system of the present invention.

Detailed Description

The following is further detailed by the specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a top plate 1, a base 2, a support column 3, a driving device 4, a first carrier plate 5, a second carrier plate 6, a first heating plate 7, a second heating plate 8, a first limit block 9, a second limit block 10, a guide column 11, a single chip microcomputer 12, a keyboard 13, a temperature sensor 14, a temperature control circuit 15, a display module 16, a top cover 17, a bottom plate 18, a soft buffer layer 19, a first contact branch 20, a second contact branch 21, a third contact branch 22, a fourth contact branch 23, a first heating resistor 24, a first contact 25, a second heating resistor 26, a second contact 27, a third heating resistor 28, a third contact 29 and a fourth contact 30.

Example one

As shown in fig. 1, the leather press control system comprises:

including the frame, install roof 1 and base 2 in the frame, base 2 passes through support column 3 and roof 1 welded fastening. The driving device 4 adopts a hydraulic machine, the main body of the hydraulic machine is welded inside the base 2, a piston rod of the driving device 4 penetrates through the upper surface of the base 2 and is welded with a first carrier plate 5, a second carrier plate 6 is arranged right above the first carrier plate 5, and the first carrier plate 5 and the second carrier plate 6 are in sliding fit with the support column 3. The lower surface of the top plate 1 is fastened with the first heating plate 7 by bolts, and similarly, the second heating plate 8 is fixedly connected with the lower surface of the second carrier plate 6 by bolts; a first limiting block 9 is welded on the front surface of the second carrier plate 6 (the front surface is the surface of the second carrier plate 6 facing the operator). A second limiting block 10 for limiting the first limiting block 9 to move downwards is fixedly welded on the supporting column 3; when the leather pressing machine does not work, the lower surface of the first limiting block 9 is positioned on the upper surface of the second limiting block 10, the second limiting block 10 supports the first limiting block 9, and then the second carrier plate 6 is fixed on the support column 3.

Further, the device also comprises a guide post 11, wherein the guide post 11 is vertical to the base 2, and two ends of the guide post 11 are respectively welded with the base 2 and the top plate 1; the first carrier 5 and the second carrier 6 are provided with guide holes, and the guide posts 11 pass through the guide holes to be in sliding fit with the first carrier 5 and the second carrier 6.

In this embodiment, an operator puts a wood board to be laminated on the upper surface of the first carrier 5 and the second carrier 6, respectively, the paper sheet can be placed on the upper surface or the lower surface of the wood board according to specific processing requirements, after the preparation work is finished, the driving device 4 is started, the driving device 4 pushes the first carrier 5 to move upwards, the first carrier 5 contacts the second heating plate 8 right above, the wood board on the upper surface of the first carrier 5 successfully enters a laminating state, the second carrier 6 moves upwards along with the first carrier 5 under the pushing of the first carrier 5, contacts the top plate 1, the wood board on the upper surface of the second carrier 6 starts to be laminated, at this time, the first heating plate 7 and the second heating plate 8 finish moving upwards the first carrier 5 and the second carrier 6, respectively heat the wood board, after the mold is closed and the pressure is kept for a certain time, the piston rod of the driving device 4 drives the first carrier 5 to move downwards, the second carrier 6 moves downward with the first carrier 5 and the lower surface of the top plate 1 is separated from the upper surface of the second carrier 6. When the second limiting block 10 on the second carrier 6 contacts the first limiting block 9 on the supporting column 3, the second carrier 6 does not move downwards any more, the first carrier 5 continues to move downwards, the lower surface of the second carrier 6 is separated from the upper surface of the first carrier 5, the leather pressing operation is completed, and the operator can take out the finished wood board from the carrier.

According to the invention, the first support plate 5 and the second support plate 6 are respectively used for placing wood boards for leather pressing, the driving device 4 works once (the piston rod of the driving device 4 reciprocates once), and leather pressing of two wood boards can be completed.

Example two

Compared with the first embodiment, the temperature control device is different in that the temperature control device further comprises a control module, the control module comprises a keyboard 13, a single chip microcomputer 12, a temperature control circuit 15, a temperature sensor 14 and a display module 16, as shown in fig. 2, the keyboard 13 is connected with an input end of the single chip microcomputer 12, an output end of the temperature sensor 14 is connected with an input end of the single chip microcomputer 12, an output end of the single chip microcomputer 12 is connected with an input end of the temperature control circuit 15, an output end of the temperature control circuit 15 is connected with a heating plate, and the display module 16 is.

Specifically, the temperature sensors 14 are respectively installed on the first heating plate 7 and the second heating plate 8, the temperature sensors 14 are DS18B20, the keyboard is a 4 × 4 matrix keyboard, the single chip microcomputer 12 is AT89C51, the display module 16 is an LCD1602 liquid crystal display, the temperature control circuit 15 comprises a thyristor and a resistance wire which are connected in series in a 220V circuit loop, and a signal port of the single chip microcomputer is connected to a control end of the thyristor. The control process comprises the following steps: the set value of the temperature is sent to the single chip microcomputer by the keyboard and displayed on the display module, after the heating plate is started to operate, the temperature of the heating plate is collected by the temperature sensor and then sent to the single chip microcomputer system to be subjected to PID control operation, the control quantity is output, and the heating wire power of the heating plate can be changed by changing the connection time of the controllable silicon tube so as to achieve the purpose of adjusting the temperature and control the heating of the heating plate. The temperature of the heating plate can be conveniently controlled by an operator, and the set temperature and the real-time temperature can be monitored.

EXAMPLE III

Compared with the first embodiment, the difference is only that, as shown in fig. 3 and 4, the second heating plate 8 includes a top cover 17, a bottom plate 18 and a soft buffer layer 19 located between the top cover 17 and the bottom plate 18, the top cover 17 is welded on the lower surface of the second carrier plate 6, the soft buffer layer 19 is fixedly installed between the top cover 17 and the bottom plate 18 by screw threads, wherein the soft buffer layer 19 is of a hollow structure and is made of silicon rubber.

A contact circuit is arranged in the second heating plate 8, and 220V alternating current voltage is used as power supply voltage; the contact circuit comprises three contact branches which are mutually connected in parallel, and a first contact branch 20, a second contact branch 21 and a third contact branch 22 are arranged from top to bottom in sequence; the distance from first contact branch 20 to the upper surface of soft buffer layer 19 is equal to the height of soft buffer layer 19. In the working process of the leather pressing machine, after the soft buffer layer 19 is extruded, the fourth contact branch 23 moves upwards to sequentially contact the third contact branch 22, the second contact branch 21 and the first contact branch 20, and finally cannot rise and stay at the first contact 25 of the first contact branch 20.

Specifically, the first contact branch 20 includes a first heating resistor 24 and a first contact 25 connected in series with each other, the second contact branch 21 includes a second heating resistor 26 and a second contact 27 connected in series with each other, and the third contact branch 22 includes a third heating resistor 28 and a third contact 29 connected in series with each other. The first contact 25, the second contact 27 and the third contact 29 are fixedly mounted at the left end in the top cover 17 by wire clips, and the first heating resistor 24, the second heating resistor 26 and the third heating resistor 28 are welded on the upper surface of the bottom plate 18.

The contact circuit also comprises a fourth contact branch 23, and a hard lead connected with a fourth contact 30 is fixedly welded and installed on the bottom plate 18 of the second heating plate 8. When the bottom plate 18 of the second heating plate 8 is not pressed by the first heating plate 5, the fourth contact 30 is located right below the third contact 29, and after the first heating plate 5 contacts the second heating plate 8, the bottom plate 18 of the second heating plate 8 is pressed to push the fourth contact 30 to move upwards, and as the pressure increases, the fourth contact 30 can be sequentially connected with the third contact 29, the second contact 27 and the first contact 25 to form a loop, and the resistances of the first resistive heater 24, the second resistive heater 26 and the third resistive heater 28 sequentially increase, and the temperature also continuously increases. When the in-process of first support plate 5 and the compound die of second hot plate 8 promptly, the temperature of second hot plate 8 progressively increases, can avoid using the keyboard to set up the temperature of second hot plate 8, and the operation is nimble more convenient.

The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Leather pressing machine control system, which comprises a frame, its characterized in that, be equipped with roof and base in the frame, the base passes through support column and roof fixed connection, be equipped with drive arrangement in the base, drive arrangement's piston rod passes the last fixed surface of base and installs first support plate, be equipped with the second support plate directly over the first support plate, first support plate and second support plate and support column sliding fit, the lower surface of roof and the lower surface of second support plate fixed mounting respectively has first hot plate and second hot plate, the front of second support plate is fixed with first stopper, the fixed second stopper that is equipped with the restriction first stopper and moves down on the support column.

2. The skin press control system of claim 1, wherein: still include control module, control module includes keyboard, singlechip, temperature control circuit and temperature sensor, and the input of singlechip is connected to the keyboard, and the input of temperature control circuit is connected to the output of singlechip, and the hot plate is connected to the output of temperature control circuit, and the input of singlechip is connected to temperature sensor's output.

3. The skin press control system of claim 2, wherein: the quantity of temperature sensor is 2, and two temperature sensor fix respectively on first hot plate and second hot plate.

4. The skin press control system of claim 2, wherein: the display module is connected with the output end of the single chip microcomputer.

5. The skin press control system of claim 1, wherein: the driving device is a hydraulic press.

6. The skin press control system of claim 1, wherein: the guide post is perpendicular to the base and fixedly installed between the base and the top plate, guide holes are formed in the first carrier plate and the second carrier plate, and the guide post penetrates through the guide holes to be connected with the first carrier plate and the second carrier plate in a sliding mode.

7. The skin press control system of claim 1, wherein: the heating plate adopts an electric heating wire as a heating element, and adopts silicon carbide as an insulating material.

8. The skin press control system of claim 1, wherein: the first heating plate has a size larger than that of the second heating plate.

9. The skin press control system of claim 1, wherein: the lower surface of the top plate is fastened with the first heating plate through bolts.

10. The skin press control system of claim 2, wherein: the temperature sensor employs DS18B 20.